A pipette tip loading mechanism and a pipette tip loading machine

Abstract

The utility model relates to medical instrument equipment field, specifically disclose pipette tip feeding mechanism and its enter box machine, including feeding chamber, feeding assembly and conveying component, and feeding chamber is equipped with inclined slope and movable bottom groove, and movable bottom groove sets up in the lower end of inclined slope and with inclined slope intercommunication, and feeding assembly includes feeding conveyor belt, and feeding conveyor belt rotates in the longitudinal direction in feeding chamber, and feeding conveyor belt surface is equipped with feeding support plate, and conveying component includes first conveying brush, conveying slope and conveyer belt, and conveying slope is inclined from feeding assembly to the direction of conveyer belt, and first conveying brush sets up between conveying slope and feeding assembly, and feeding conveyor belt turns in movable bottom groove.

Description

Technical Field

[0001] This utility model relates to the field of medical devices and equipment, and in particular to a medical gun tip insertion device. Background Technology

[0002] Currently, the use of pipette tips in biochemical experiments and medical applications is quite extensive. In order to save costs and reuse them, people usually buy whole packages of loose pipette tips and pack them into boxes themselves. However, packing them into boxes requires manual insertion of the tips into the box holes. This packing method not only consumes a lot of time and labor costs, but improper operation procedures can also cause secondary contamination of the tips.

[0003] Existing patents provide relevant equipment for automatically loading bulk pipette tips into boxes, such as Chinese patent CN221438648U which discloses a rapid pipette tip loading machine.

[0004] However, the shapes and structures of commonly used pipette tips vary. The aforementioned patent uses gravity to separate two tips, but stacked tips are difficult to separate and tend to accumulate, making it impossible to dispense the tip into the cartridge. Furthermore, using a feeding roller for dispensing causes the tips to tumble and stack together, resulting in cartridge dispensing failure.

[0005] The technical problem to be solved by this application is: how to reduce the stacking of pipette tips during feeding. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a pipette tip feeding mechanism and its box feeding machine.

[0007] The technical solution adopted in this utility model is as follows: a pipette tip feeding mechanism, including a feeding chamber, a feeding assembly, and a conveying assembly. The feeding chamber is provided with an inclined surface and a movable bottom groove. The movable bottom groove is located at the lower end of the inclined surface and communicates with the inclined surface. The feeding assembly includes a feeding conveyor belt, which rotates longitudinally in the feeding chamber. A feeding tray is provided on the surface of the feeding conveyor belt. The conveying assembly includes a first conveying brush, a conveying inclined plate, and a conveyor belt. The conveying inclined plate is inclined from the feeding assembly toward the conveyor belt. The first conveying brush is located between the conveying inclined plate and the feeding assembly. The feeding conveyor belt turns in the movable bottom groove. The feeding tray connects with the conveying inclined plate when it passes through the conveying inclined plate and connects with the inclined surface when it passes through the inclined surface.

[0008] In some embodiments, the feeding chamber is provided with an inlet and an outlet, with the inlet located on one side of the feeding chamber and the conveyor belt passing through the outlet.

[0009] In some implementations, the feeding tray is inclined downwards from the inclined ramp toward the movable trough.

[0010] In some embodiments, a feeding fan is provided at the higher end of the inclined slope, and the outlet of the feeding fan faces the movable bottom trough.

[0011] In some embodiments, the conveying assembly includes a second conveying brush that is limited to rotating above the conveying ramp.

[0012] In some implementations, an auxiliary ramp is provided above the conveyor belt, and the two auxiliary ramps are arranged in a V-shape, with the distance between the lower ends of the two auxiliary ramps being the distance between the conveyor belts.

[0013] In some implementations, the movable bottom groove is configured to be arc-shaped.

[0014] The box-feeding machine includes the pipette tip feeding mechanism of any of the above embodiments, including an outer frame assembly, a guide assembly and a box-feeding assembly, wherein the guide assembly, the box-feeding assembly and the pipette tip feeding mechanism are disposed within the outer frame assembly.

[0015] In some embodiments, the conveying assembly includes a conveying extension plate and a recovery trough. The conveying extension plate is disposed on the side of the discharge port away from the feeding chamber. The conveyor belt moves on the conveying extension plate. The recovery trough is disposed below the conveying extension plate and is inclined downward from the guide assembly toward the feeding chamber. The lower end of the recovery trough communicates with the feeding chamber.

[0016] In some embodiments, the guiding assembly includes a tube guide and an opening / closing alignment nozzle, which are connected. The opening / closing alignment nozzle is responsible for transferring each piece of material into the box assembly. The box assembly includes an XY axis slide rail and several gun boxes. The XY axis slide rail is provided with a slider and a slide plate. The slide plate is fixedly connected to the slider, and the gun boxes are detachably connected to the slide plate.

[0017] The beneficial effects of this utility model are as follows: The pipette tip feeding mechanism and its box feeding machine feed the pipette tips via a feeding conveyor belt. By reducing the rolling motion of the pipette tips, the chance of pipette tips stacking is reduced. The combination of the inclined plane and the feeding tray completes the dispensing and feeding of the pipette tips, effectively reducing the situation of pipette tips stacking together. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the feeding mechanism of a pipette tip; Figure 2 This is a schematic diagram of the conveying component. Figure 3 This is a schematic diagram of the internal structure of the box-loading machine; The labels and names in the diagram correspond as follows: 1. Feeding chamber; 2. Feeding assembly; 3. Conveying assembly; 4. Outer frame assembly; 5. Guiding assembly; 6. Box assembly; 12. Discharge port; 13. Inclined slope; 14. Movable bottom trough; 15. Feeding fan; 21. Feeding conveyor belt; 22. Feeding pallet; 31. First conveying brush; 32. Second conveying brush; 33. Conveying ramp; 34. Conveying belt; 35. Conveying extension plate; 36. Synchronous roller; 37. Auxiliary ramp; 38. Recycling trough; 51. Pipe guide; 52. Opening and closing alignment nozzle; 61. XY axis slide rail; 62. Gun box; 63. Slide plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 This utility model provides a technical solution: a pipette tip feeding mechanism, including a feeding chamber 1, a feeding component 2 and a conveying component 3, wherein the feeding component 2 and the conveying component 3 are disposed in the feeding chamber 1.

[0021] Please see Figure 1 The feeding chamber 1 is equipped with an inlet, an outlet 12, an inclined surface 13, and a movable bottom trough 14. The feeding chamber 1 is used to hold materials. The inlet is located on one side of the feeding chamber 1, and materials enter the feeding chamber 1 through the inlet. The inlet is equipped with a detachable inlet baffle with a convenient handle. The inclined surface 13 is the bottom surface of the feeding chamber 1. The movable bottom trough 14 is located at the lower end of the inclined surface 13 and communicates with it. Materials move towards the movable bottom trough 14 on the inclined surface 13 due to gravity. The movable bottom trough 14 is arc-shaped. A feeding fan 15 is located at the higher end of the inclined surface 13, with its outlet facing the movable bottom trough 14. The feeding fan 15 is designed to move loose materials towards the movable bottom trough 14. The outlet 12 is located on the moving path of the conveying assembly 3.

[0022] Please see Figure 1 and Figure 2The feeding assembly 2 includes a feeding conveyor belt 21, a feeding drive element, a feeding drive shaft, and a feeding driven shaft. The feeding drive shaft and the feeding driven shaft are respectively positioned above the movable bottom groove 14 and are arranged vertically. The feeding drive shaft and the feeding driven shaft rotate within the feeding chamber 1. The feeding conveyor belt 21 is connected to the feeding drive shaft and the feeding driven shaft, so the feeding conveyor belt 21 rotates longitudinally within the feeding chamber 1. The feeding drive element is a motor with a rotating output end, which drives the feeding drive shaft to rotate. The surface of the feeding conveyor belt 21 is provided with uniformly distributed feeding trays 22. The width of the feeding trays 22 is greater than one times the width of the material and not more than four times the width of the material to avoid an excessively large angle between the material and the feeding conveyor belt 21, thereby increasing the possibility of material stacking. Furthermore, the distance between the feeding conveyor belt 21 and the inclined plane 13 is not less than the width of the feeding pallet 22, so as to facilitate the connection between the feeding pallet 22 and the inclined plane 13 when the feeding pallet 22 passes through the inclined plane 13, thereby facilitating the material to roll onto the feeding pallet 22. The movable bottom trough 14 is set in an arc shape so that the feeding pallet 22 will cause motion interference when it passes through the feeding drive shaft or the feeding driven shaft. The feeding conveyor belt 21 turns in the movable bottom trough 14. In addition, during the movement of the feeding pallet 22, the feeding conveyor belt 21 can also support and move the material falling into the movable bottom trough 14.

[0023] In order to prevent materials from falling during the rising process, the feeding pallet 22 is inclined downward from the inclined slope 13 toward the movable bottom groove 14, but the inclination angle of the feeding pallet 22 on the horizontal plane is smaller than the inclination angle of the inclined slope 13 on the horizontal plane.

[0024] The conveying assembly 3 includes a first conveying brush 31, a second conveying brush 32, a conveying drive element, a conveying ramp 33, and a conveyor belt 34. The conveying ramp 33 is inclined and positioned on one side of the feeding assembly 2 and above the inclined surface 13. The conveying ramp 33 is inclined from the feeding assembly 2 toward the conveyor belt 34. When the feeding pallet 22 passes through the conveying ramp 33, the feeding pallet 22 and the conveying ramp 33 are connected. The first conveying brush 31 and the second conveying brush 32 are respectively driven by the corresponding conveying drive element to rotate within the feeding chamber 1. The conveying drive element is a motor with a rotating output end. In order for the material to be smoothly transferred to the conveying ramp 33, the first conveying brush 31 is positioned between the conveying ramp 33 and the feeding assembly 2. The first conveying brush 31 is responsible for transferring the material on the feeding pallet 22 to the conveying ramp 33. The second conveying brush 32 is limited to rotating above the conveying ramp 33 and is responsible for transferring the material on the conveying ramp 33 to the conveyor belt 34. The inclined arrangement of the conveyor ramp 33 increases the material movement speed. To allow the conveyor belt 34 to move within the feeding chamber 1, the conveyor belt 34 is equipped with an extension connecting plate. The conveyor belt 34 moves on the extension connecting plate, one end of which is fixedly connected to one side of the feeding chamber 1. The conveyor belt 34 passes through the discharge port 12 of the feeding chamber 1, transferring the material to the external space of the feeding chamber 1. The two conveyor belts 34 are driven synchronously by a dual-shaft drive motor, moving in a direction away from the feeding chamber 1. A hanging gap is provided between the two conveyor belts 34, allowing material to roll between them and be caught in the hanging gap, thus being transferred by the conveyor belts 34. Because the radial direction of one end of the material is larger than that of the other end, the width of the hanging gap is smaller than the radial direction of the larger end of the material. An auxiliary inclined plate 37 is provided above the conveyor belt 34. The two auxiliary inclined plates 37 are arranged in a V-shape. The distance between the lower ends of the two auxiliary inclined plates 37 is the distance between the conveyor belts 34. The auxiliary inclined plate 37 near the conveyor inclined plate 33 is used to connect the conveyor inclined plate 33 and the conveyor belt 34. The auxiliary inclined plate 37 is set so that the material can smoothly enter the conveyor belts 34 and avoid detachment due to excessive movement speed.

[0025] The working principle and usage process of the pipette tip feeding mechanism: The material enters the feeding chamber 1 from the inlet. Due to the setting of the inclined plane 13 and the feeding fan 15, the material rolls towards the lower end of the inclined plane 13. During the rotation of the feeding conveyor belt 21, each feeding pallet 22 is connected to the inclined plane 13 in sequence, thereby driving the material at the bottom of the inclined plane 13. The feeding conveyor belt 21 transports the material upward. When each feeding pallet 22 passes the conveying inclined plate 33, the first conveying brush 31 transfers the material on the feeding pallet 22 to the conveying inclined plate 33. The second conveying brush 32 continues to transfer the material on the conveying inclined plate 33 to the conveyor belt 34. The material is transferred to the outside of the feeding chamber 1 through the conveyor belt 34.

[0026] The box-feeding machine includes the pipette tip feeding mechanism described above, and also includes an outer frame assembly 4, a guide assembly 5, and a box-feeding assembly 6. The guide assembly 5 is positioned above the box-feeding assembly 6, and the conveyor belt 34 is positioned above the guide assembly 5. The guide assembly 5, the box-feeding assembly 6, and the pipette tip feeding mechanism are all housed within the outer frame assembly 4.

[0027] The conveying assembly 3 also includes a conveying extension plate 35, which is located on the side of the discharge port 12 away from the feeding chamber 1. The conveyor belt 34 moves on the conveying extension plate 35. To facilitate the movement of the conveyor belt 34 and limit its direction of movement, the conveyor belt 34 is provided with several synchronous rollers 36, which are driven by the conveyor belt 34. The conveying extension plate 35 is fixedly connected to the outer frame assembly 4.

[0028] In order to recover materials that fall during the conveying process, the conveying assembly 3 includes a recovery trough 38, which is located below the conveying extension plate 35. The recovery trough 38 is inclined downward from the guide assembly 5 towards the feeding chamber 1, and the lower end of the recovery trough 38 is connected to the feeding chamber 1.

[0029] Please see Figure 3 The guiding assembly 5 includes a tube guide 51 and an opening / closing alignment nozzle 52. The tube guide 51 is positioned below the end of the conveyor belt 34's transport path. Material detaches from the conveyor belt 34 and falls into the tube guide 51. The tube guide 51 and the opening / closing alignment nozzle 52 are connected, and the opening / closing alignment nozzle 52 is responsible for transferring each piece of material to the box-entry assembly 6. The tube guide 51 passes through the recycling trough 38.

[0030] The gun loading assembly 6 includes an XY-axis slide rail 61 and six gun loading boxes 62. The XY-axis slide rail 61 is equipped with a slider and a slide plate 63. The slide plate 63 is fixedly connected to the slider. The XY-axis slide rail 61 drives the slider to move. The XY-axis slide rail 61 is existing technology and will not be described in detail here. The gun loading boxes 62 are evenly distributed on the slide plate 63 and are detachably connected to the slide plate 63.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pipette tip feeding mechanism, comprising a feeding chamber (1), a feeding assembly (2), and a conveying assembly (3), characterized in that, The feeding chamber (1) is provided with an inclined plane (13) and a movable bottom groove (14). The movable bottom groove (14) is located at the lower end of the inclined plane (13) and communicates with the inclined plane (13). The feeding assembly (2) includes a feeding conveyor belt (21), which rotates longitudinally in the feeding chamber (1). The surface of the feeding conveyor belt (21) is provided with a feeding tray (22). The conveying assembly (3) includes a first conveying brush (31) and a conveying inclined plate (32). 3) and conveyor belt (34), the conveyor sloping plate (33) is inclined from the feeding assembly (2) toward the conveyor belt (34), the first conveyor brush (31) is set between the conveyor sloping plate (33) and the feeding assembly (2), the feeding conveyor belt (21) turns in the movable bottom groove (14), the feeding pallet (22) is connected to the conveyor sloping plate (33) when it passes the conveyor sloping plate (33), and the feeding pallet (22) is connected to the inclined plane (13) when it passes the inclined plane (13).

2. The pipette tip feeding mechanism according to claim 1, characterized in that, The feeding chamber (1) is provided with an inlet and an outlet (12). The inlet is located on one side of the feeding chamber (1), and the conveyor belt (34) passes through the outlet (12).

3. The pipette tip feeding mechanism according to claim 1, characterized in that, The feeding tray (22) is inclined downward from the inclined slope (13) toward the movable bottom groove (14).

4. The pipette tip feeding mechanism according to claim 1, characterized in that, A feeding fan (15) is provided at the higher end of the inclined slope (13), and the air outlet of the feeding fan (15) faces the movable bottom groove (14).

5. The pipette tip feeding mechanism according to claim 1, characterized in that, The conveying assembly (3) includes a second conveying brush (32), which is limited to rotating above the conveying ramp (33).

6. The pipette tip feeding mechanism according to claim 1, characterized in that, An auxiliary inclined plate (37) is provided above the conveyor belt (34). The two auxiliary inclined plates (37) are arranged in a shape similar to "V". The distance between the lower ends of the two auxiliary inclined plates (37) is the distance between the conveyor belts (34).

7. The pipette tip feeding mechanism according to claim 1, characterized in that, The movable bottom groove (14) is set to be arc-shaped.

8. A box-feeding machine, comprising the pipette tip feeding mechanism of any one of claims 1-7, characterized in that, It includes an outer frame assembly (4), a guide assembly (5), and a box assembly (6), wherein the guide assembly (5), the box assembly (6), and the pipette tip feeding mechanism are disposed inside the outer frame assembly (4).

9. The box-loading machine according to claim 8, characterized in that, The conveying assembly (3) includes a conveying extension plate (35) and a recycling trough (38). The conveying extension plate (35) is located on the side of the discharge port (12) away from the feeding chamber (1). The conveyor belt (34) moves on the conveying extension plate (35). The recycling trough (38) is located below the conveying extension plate (35). The recycling trough (38) is inclined downward from the guide assembly (5) towards the feeding chamber (1). The lower end of the recycling trough (38) is connected to the feeding chamber (1).

10. The box-loading machine according to claim 8, characterized in that, The guiding component (5) includes a tube guide (51) and an opening and closing alignment nozzle (52), which are connected. The opening and closing alignment nozzle (52) is responsible for transferring each material into the box assembly (6). The box assembly (6) includes an XY axis slide rail (61) and several gun boxes (62). The XY axis slide rail (61) is provided with a slider and a slide plate (63). The slide plate (63) is fixedly connected to the slider, and the gun box (62) is detachably connected to the slide plate (63).

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